For accountability I wouldn't want a person to blame field, I would want a Person who knows the code field or a person who can fix field, so that I would know where to send the support ticket.
This would speed up the process fixing the bug itself and give accountability, kind of like killing two birds with one stone. I would personally bring this up to him and let him decide if this would help to increase morale and accountability without making anyone feel like they failed. Extreme testing doesn't catch all bugs, otherwise there wouldn't be bug reporting.